Diesel fumes do kill: a case of fatal carbon monoxide poisoning directly attributed to diesel fuel exhaust with a 10-year retrospective case and literature review*

While it is known that diesel fuel combustion engines produce much lower concentrations of carbon monoxide (CO) than gasoline engines, these emissions could certainly generate lethal ambient concentrations given a sufficient amount of time in an enclosed space and under suitable environmental conditions. The authors report a case of CO poisoning which was initially referred for autopsy as a presumed natural death of a truck driver found in the secure cab of a running diesel tractor trailer truck. Completion of the preliminary investigation ascribed death to complications of ischemic heart disease (IHD), pending toxicological analysis that included quantification of CO. When the toxicology results showed lethal blood COHbg, the cause of death was re-certified as CO intoxication secondary to inhalation of (diesel) vehicular exhaust fumes. Because of the unique source of fatal CO intoxication in this case, the contributory IHD and the possible contaminants in the putrefied blood, a 10-year retrospective review was conducted on all nonfire related CO deaths autopsied (n = 94) at the Office of the Chief Medical Examiner in Louisville, KY from 1994 to 2003. For validation of the COHbg detection method used by the Kentucky Office of Forensic Toxicology (KYOFT), blood samples from these cases along with controls were submitted to three laboratories using various analytical methods yielding no statistically significant differences. Lastly, an extensive literature review produced no scientifically reported cases of fatal CO poisoning attributed to diesel fuel exhaust.     

Children’s Perceptions of Intimate Partner Violence: Causes,Consequences, and Coping

Children’s appraisals of conflictual and aggressive parental interactions mediate their effect on children’s adjustment. Previous studies have relied almost exclusively on self-report questionnaires to assess appraisals; consequently we know little about perceptions that occur naturally when children witness interparental aggression. This study employed a semi-structured interview to assess the thoughts and feelings of 34 children (ages 7–12) whose mothers were receiving services at domestic violence agencies, and mothers reported on interparental aggression that took place in the home. Children’s thoughts centered on consequences and efforts to understand why fights occurred. They generally viewed their mother’s partner as responsible for violence, though a significant number viewed both parents as playing a role. Sadness and anger were more common than anxiety, and children often attempted to stop or withdraw from fights or both. When asked why family violence occurs, most focused on perpetrators’ lack of control of anger or personal characteristics, but approximately one-third viewed victims as provoking aggression. These findings support the idea that children actively attempt to understand the causes and consequences of interparental violence and suggest that their perceptions and interpretations are important for understanding the development of beliefs regarding the use of violence in close relationships.     

Tattoo frequency and types among homicides and other deaths, 2007-2008: a matched case-control study

An estimated 25% of the US population aged 18 to 50 years has a tattoo, which have been associated with markers of high-risk behaviors including alcohol and drug use, violence, carrying weapons, sexual activity, eating disorders, and suicide. This study compares tattoo prevalence and type in a homicide population to those of an age-, race-, and sex-matched control group of nonhomicide deaths. The data for this study were abstracted from autopsy records maintained by the Jefferson County Alabama Coroner/Medical Examiner's Office for the years 2007 and 2008. Odds ratios and 95% confidence intervals for the association between homicide and tattoo presence and characteristics were calculated using conditional logistic regression. There was no association between tattoo presence and death by homicide; however, among blacks, memorial tattoos were significantly more common among homicides compared with other types of deaths (odds ratio, 2.50; 95% confidence interval, 1.10-5.68). The results of the current study suggest that specific types of tattoos, but not all tattoos, may be risk factors for homicide. Other factors, such as race and lifestyle, along with tattoos may need to be considered.     

Prospective effects of method of coercion in sexual victimization across the first college year

Women who enter college with a sexual victimization (SV) history may be at particular risk for deleterious outcomes including maladaptive alcohol involve posttraumatic stress, and re-victimization. Further, pre-college SV may be an impediment for the achievement of academic mile and may negatively impact the transition into college. Recent work shows that the method of coercion used in SV may be an important predictor of post-victimization outcomes. As such, the identification of pathways between type of SV and outcomes can aid in early identification and intervention for those at highest risk. In a sample of newly-matriculated female college students, this study examined unique outcomes associated with two specific types of SV, (1) threats/use of physical force (Force SV) or (2) incapacitation (Incap SV). Participants completed assessments of SV, alcohol involvement, posttraumatic stress, and academic outcomes at 6 time-points over their first year of college. Results showed differential outcomes based on pre-matriculation exposure to Force SV or Incap SV. Women with Incap SV were higher on problem drinking indices whereas women with Force SV were at greater risk for re-victimization and marginally more PTSD symptoms. Having a history of either type of SV predicted attrition, but there were no differences when comparing Force SV to Incap SV. Overall, results from this study support the utility of delineating SV experiences by method of coercion, and point to the potential of highlighting different outcomes in tailored intervention programs.     

Analyzing the turnout-competition link with aggregate cross-sectional data

Numerous papers by Public Choice oriented scholars and others have sought to test the hypothesis inspired by Downs (1957) that, ceteris paribus, turnout should be higher when elections are close. Most look in cross-sectional terms at variations in turnout at the constituency level for elections of a given type. By and large the results have been disappointing (see, e.g., Foster, 1984). We are skeptical of these weak findings and argue that a complete portrait of the turnout-competition link requires us to examine that link for at least three different types of turnout (turnout among potential eligibles, turnout among registrants, and turnout for a given office relative to other offices such as top of the ticket), and to take into account longitudinal changes in turnout. For recent off-year elections to the U.S. Senate and also for off-year elections to the U.S. House of Representatives in states where there was no gubernatorial or senatorial contest on the ballot, we find strong evidence for higher turnout among eligibles in close contests. For these elections to the U.S. Senate we also find evidence for an ecological effect that leads to turnout being maximized at values of competition other than 50–50. Moreover, when we look at turnout for office relative to top of the ticket voting in the California Assembly and the U.S. Senate in presidential years, we again find some evidence for an ecological effect in which turnout is maximized at a value of Republican vote share above 50 percent and find further strong evidence for a clear link between competition and turnout for office among those at the polls.